A full "factory restore" involves booting to the restore CDs (or hard drive sys restore partion, used by some manufactors) and following the manufactors instructions.
A Factory restore will result in all DATA being wiped, it really does mean "like the day it left the factory".

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Enter your new password twice. Please keep a note of this new password somewhere safe. If you forget this password, you will need to reset your Hub to factory defaults to restore access to the configuration of your router.

Click 'Apply'.

If you now browse other pages of the Hub/Router manager, you will be prompted to enter your new password immediately.

The Laptop charger or the charging point itself is bad or damaged. You'll need to try different charger to take your laptop to any nearest computer repair shop to have charging point repaired or replaced.

Usually while installing programs, other programs are installed in the process, so try uninstalling some of them that you ate not using them. Furthermore try to find a driver for your graphics card and install it.

Laptop computers can be wonderful devices, except when the need to troubleshoot arises. Acer laptops are no different. A quick way to fix many problems with an Acer laptop running Windows is to reset it to factory settings. Resetting your Acer laptop to factory settings can eliminate slow operating, registry problems, virus problems, spyware issues and more. And a factory reset of your laptop may reduce the need for a full reinstallation of Windows.

1.Back up all necessary data to an external device such as a disk, flash drive or hard drive

2.Make sure all programs are closed and shut down your Acer laptop by opening your Start menu and selecting "Shut Down" from the options for shutting down and restarting windows.

3.Detach any external hardware such as an external hard drive or printer.

4.Press the Power button to boot your Acer laptop.

5.Press "Alt + F10" on your keyboard when the Acer screen appears at the start of the boot up process. Wait a moment while Windows loads the reset files.

6.Select "Restore System from factory default" in the Acer eRecovery Management window.

7.Click "Next" on the next screen to continue. Click "Next" on the following destination information window. This will pop up a notice telling you that resetting your Acer laptop will erase all data and restore the laptop to its original settings and configuration.

8.Click "OK" in the notice window to proceed with resetting your Acer laptop.

When you receive the error, "No Operating System found". There could be one of two things wrong.Either your hard drive with Windows properly installed is bad,Or, you haven't installed Windows or the Windows installation is corrupt.

All you have to do is reinstall Windows using the discs provided to you by Dell and you'll be golden.

To reset your laptop to its factory state you need to restart or turn it on, then just tap F10, It will ask you on how would you loke to restore then select Restore system to factory settings. Usually it would ask you for a password just etern six zeros "000000" it should work. Please wait until the restore process is completed.

Note: All data will be deleted so make sure you back up them first before you do a Restore to Factory Settings

In order to reset your computer to factory setting you have to have the system restore disk and put it in your cd drive and reboot your computer with it inside... after pc boots up, a screen should popup click on restore to factory settings... if you dont have a disk reply back and i can give you a link for download..

first of all press F2 or Del for cmos setting and there u can set the default settings of the laptop and check it options( i.e. F8=default settings) plz find the default setting option in ur laptop and then hit the defalut setting and ur laptop reset as factory settings.
ok dear!
Subham_05